Web/API/ANGLE instanced arrays/drawElementsInstancedANGLE

From Get docs


The ANGLE_instanced_arrays.drawElementsInstancedANGLE() method of the WebGL API renders primitives from array data like the gl.drawElements() method. In addition, it can execute multiple instances of a set of elements.

Note: When using WebGL2, this method is available as gl.drawElementsInstanced() by default.


Syntax

void ext.drawElementsInstancedANGLE(mode, count, type, offset, primcount);

Parameters

mode
A GLenum specifying the type primitive to render. Possible values are:
gl.POINTS
  • Draws a single dot.
  • gl.LINE_STRIP: Draws a straight line to the next vertex.
  • gl.LINE_LOOP: Draws a straight line to the next vertex, and connects the last vertex back to the first.
  • gl.LINES: Draws a line between a pair of vertices.
  • gl.TRIANGLE_STRIP
  • gl.TRIANGLE_FAN
  • gl.TRIANGLES: Draws a triangle for a group of three vertices.
count
A GLsizei specifying the number of elements to be rendered.
type
A GLenum specifying the type of the values in the element array buffer. Possible values are:
    • gl.UNSIGNED_INT
offset
A GLintptr specifying an offset in the element array buffer. Must be a valid multiple of the size of the given type.
primcount
A GLsizei specifying the number of instances of the set of elements to execute.

Return value

None.

Exceptions

  • If mode is not one of the accepted values, a gl.INVALID_ENUM error is thrown.
  • If offset is a invalid multiple of the size of the given type, a gl.INVALID_OPERATION error is thrown.
  • If count or primcount are negative, a gl.INVALID_VALUE error is thrown.

Examples

var ext = gl.getExtension('ANGLE_instanced_arrays');
ext.drawElementsInstancedANGLE(gl.POINTS, 2, gl.UNSIGNED_SHORT, 0, 4);

Specifications

Specification Status Comment
ANGLE_instanced_arraysThe definition of 'ANGLE_instanced_arrays' in that specification. Recommendation Initial definition.

Browser compatibility

The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

Update compatibility data on GitHub

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
drawElementsInstancedANGLE Chrome

Full support 32

Edge

Full support 12

Firefox

Full support 47

IE

Full support 11

Opera

Full support 19

Safari

Full support 7

WebView Android

Full support 4.4

Chrome Android

Full support 32

Firefox Android

Full support Yes

Opera Android

Full support 19

Safari iOS

Full support 8

Samsung Internet Android

Full support 2.0

Legend

Full support  
Full support


See also